betcha the oils smell is coming from one of those braided turbo lines with
a small leak.
replaced all of mine which were leaking, but were impossible to locate
since there was no pool of oil on the ground and the leaks were underneath
the lines. Cost me nearly $1K.
Sometimes those braided lines leak, but the oil never makes it to the
ground - it just heats up, smells, and then burns away.
HTH,
Richard